CN110204906A - A kind of compound anti-bird umbrella cover of macromolecule and preparation method thereof - Google Patents
A kind of compound anti-bird umbrella cover of macromolecule and preparation method thereof Download PDFInfo
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Abstract
The present invention provides compound anti-bird umbrella covers of a kind of macromolecule and preparation method thereof, by the way that methyl vinyl silicone rubber is blended with components such as butadiene-styrene rubber, polypropylene, talan, methyl vinyl silicone rubber matrix is modified, hence it is evident that improve the resistance to ag(e)ing and mechanical strength of rubber matrix；Basalt fibre is added into macromolecule matrix as reinforcement, to improve the tensile strength of basis material；By silicon rubber and nanometer calcium carbonate admixture of powder, compared with the silicone rubber matrix of one-component, the cost of raw material is significantly reduced；Use silane coupling agent processing basalt fibre, nano-calcium carbonate calcium powder and fire retardant, maleic anhydride inoculated polypropylene compatilizer is added in the base, it can effectively solve the consistency problem between each component, the anti-bird umbrella cover of macromolecule obtained can satisfy requirement completely.
Description
Technical field
The present invention relates to high voltage transmission line road insulator protective equipment technical fields, and in particular to a kind of anti-bird of macromolecule
Umbrella cover and preparation method thereof.
Background technique
In recent years, since the problems such as line tripping of birds activity initiation, ground fault occurs often, line caused by bird pest
Road failure has become one of an important factor for threatening line security operation, causes to resident living, the normal electricity consumption of plant produced
It seriously affects.Suitable position installation of the prior art usually above the grading ring of insulator high-pressure side within the scope of 15-20cm is exhausted
Edge canopy, contact or close insulator edge when stopping birds droppings, foreign matter to fall, it is ensured that short circuit, surrounding do not occur for insulator chain
Field strength is not distorted, thus avoid electric discharge tripping caused by occurring to there is birds droppings or foreign matter to fall above the insulator chain therefore
Barrier.
Chinese patent CN201610004639.6 discloses a kind of anti-bird umbrella cover of fitting formula, and rubber umbrella cover is completely encapsulated in gold
Belong to skeleton outside, solve the problems, such as that above-mentioned umbrella cover intensity is low, be easily destroyed, service life it is short.But metallic framework is introduced as umbrella
The skeleton of cover, it will be apparent that improve the cost of raw material, and metallic framework is easy to happen corrosion, influence umbrella cover to a certain extent
Service life.
Chinese patent CN201010204167.1 discloses a kind of preparation method of anti-bird silicone rubber composite insulator, the hair
It is bright that silicon rubber, white carbon black, dimethicone, hydroxy silicon oil, peroxide diisopropylbenzene (DIPB), amido methyl benzoate are mixed with anti-bird
Silicon rubber compound insulator is free of metallic framework in product, and integral strength is lower, therefore, is easily broken by external force such as birds, dusts storm
Bad, service life is shorter, and higher cost.
Chinese patent CN201510056447.5 discloses a kind of anti-bird pest protective cover of grading ring of wind resistance folding, and protective cover is whole
Body is silicone rubber material, is ready to pass through and reaches power structure in the case where not changing former pneumatic structure in design stayed structure realization
Balance, to improve protective cover in the service life of wind-force larger area.Only product structure is adjusted, and not to material itself
It improves, cannot still be obviously improved the service life of product.
Summary of the invention
The purpose of the present invention makes to provide a kind of compound anti-bird umbrella cover of macromolecule and preparation method thereof, to overcome above-mentioned existing skill
Defect existing for art.By the way that methyl vinyl silicone rubber to be blended with components such as butadiene-styrene rubber, polypropylene, talan, to first
Base vinylsiloxane rubber matrix is modified, to improve the resistance to ag(e)ing and mechanical strength of rubber matrix；Meanwhile to polymer-based
Basalt fibre is added in body as reinforcement, to further increase the intensity of basis material；By silicon rubber and polypropylene, nanometer
Calcium carbonate powder is blended, to reduce the cost of former material；Basalt fibre, nano-calcium carbonate calcium powder are handled using silane coupling agent
Maleic anhydride inoculated polypropylene compatilizer is added in end in the base, solves the consistency problem between each component, guarantees macromolecule
Anti- bird umbrella cover meets requirement；By rationally designing polymer composite co-mixing system, product is i.e. complete in mold process
At vulcanization, demoulding is finished product, simplifies production technology, reduces production cost.
The compound anti-bird umbrella cover of macromolecule of the present invention includes the component calculated in parts by weight as follows:
The flow temperature of the modified methyl vinylsiloxane rubber is 145-175 DEG C；
The compatilizer is maleic anhydride inoculated polypropylene compatilizer, and minimum grafting rate is 1.2%；
The basalt fibre, nanometer calcium carbonate and fire retardant are pre-processed by silane coupling agent；
The diameter of the basalt fibre is 5-20 μm, length 2-5mm；
The fire retardant is one of aluminium oxide, magnesium hydroxide, antimony oxide；
The ultraviolet absorbing agent is one of salicylic acid esters, benzophenone class, benzotriazole；
The antioxidant is one of zinc dialkyl dithiocarbamate, N- phenyl-α-naphthylamine and alkyl phenthazine；
The vulcanizing agent is benzoyl peroxide, 2,4- dichlorobenzoperoxide, one in cumyl peroxide
Kind；
Preferably, the component of the antioxidant, vulcanizing agent and color masterbatch is respectively 1.2,1.2 and 2.4 parts；
Preferably, the diameter of the basalt fibre is 18 μm, length 3mm；
Preferably, the fire retardant is aluminium oxide；
Preferably, the ultraviolet absorbing agent is salicylic acid esters；
The preparation method of the compound anti-bird umbrella cover of macromolecule of the present invention includes the following steps:
(1) preparation of modified methyl vinylsiloxane rubber:
Formula includes the component calculated in parts by weight as follows: 35-55 parts of methyl vinyl silicone rubber, butadiene-styrene rubber 15-18
Part, 10-12 parts of talan, 8-10 parts of dimethicone, 20-30 parts of polypropylene, 2-4 parts of azodiisobutyronitrile, triallyl
1-2 parts of isocyanuric acid ester, 0.2-1 parts of cumyl peroxide；
Modified methyl vinylsiloxane rubber the preparation method is as follows:
A. by the parts by weight of constitutive material by methyl vinyl silicone rubber, butadiene-styrene rubber, polypropylene and dimethicone,
2-3h is stirred to react at 120-130 DEG C；
B. talan and azodiisobutyronitrile are added by weight in step (a) mixture, in 130-145 DEG C of condition
Under be stirred to react 3-5h；
C. Triallyl isocyanurate and cumyl peroxide are added by weight in step (b) mixture,
1-2h is stirred to react under the conditions of 150-160 DEG C；
(2) weigh in proportion above-mentioned modified methyl vinylsiloxane rubber and basalt fibre, compatilizer, nanometer calcium carbonate,
Fire retardant, ultraviolet absorbing agent, antioxidant, vulcanizing agent, color masterbatch are added in kneader and are kneaded 30-60min to obtain rubber multiple
Matrix is closed, control temperature is no more than 170 DEG C；
(3) rubber complex matrix is squeezed out by circular mouth mold, needs to be cut into molding material base according to production；
(4) molding material base being placed in mold and is pressed and molded, briquetting pressure 4-6MPa, temperature is 190-200 DEG C,
Dwell time is 8-12min, and natural cooling is after demoulding up to the anti-bird umbrella cover finished product of macromolecule.
Wherein, the flow temperature of rubber complex matrix obtained by step (2) is 162-213 DEG C.
Beneficial effects of the present invention
(1) by the way that methyl vinyl silicone rubber to be blended with components such as butadiene-styrene rubber, polypropylene, talan, to methyl
Vinylsiloxane rubber matrix is modified, hence it is evident that improves the resistance to ag(e)ing and mechanical strength of rubber matrix；
(2) basalt fibre is added into macromolecule matrix as reinforcement, to improve the intensity of basis material；
(3) by silicon rubber and nanometer calcium carbonate admixture of powder, compared with the silicone rubber matrix of one-component, the cost of raw material
It significantly reduces；
(4) it using silane coupling agent processing basalt fibre, nano-calcium carbonate calcium powder and fire retardant, is added in the base
Maleic anhydride inoculated polypropylene compatilizer solves the consistency problem between each component；
(5) by rationally designing polymer composite co-mixing system, product step in mold process is completed vulcanization, is taken off
Mould is finished product, and post-cure process is omitted, and simplifies production technology, reduces production cost.
(6) unexpected discovery of the present invention, when the component of antioxidant, vulcanizing agent and color masterbatch is respectively 1.2,1.2 and
2.4 parts, and the diameter of basalt fibre is 18 μm, length 3mm, while fire retardant is aluminium oxide, ultraviolet absorbing agent is
When salicylic acid esters, can be obviously improved product deflects cracking grade, and compression heat generation test result is best.
Specific embodiment
In the following, embodiments of the present invention will be described, number alleged by each component is parts by weight in following embodiment.
Embodiment 1:
The preparation of modified methyl vinylsiloxane rubber:
A. 55 parts of methyl vinyl silicone rubbers, 15 parts of butadiene-styrene rubber, 30 parts of polypropylene and 8 parts of dimethicones are weighed,
3h is stirred to react at 120 DEG C；
B. 12 parts of talan, 4 parts of azodiisobutyronitriles are added into step (a) mixture, are stirred to react at 130 DEG C
5h；
C. 2 parts of Triallyl isocyanurates and 0.8 part of cumyl peroxide are added in step (b) mixture,
After being stirred to react 1h under the conditions of 160 DEG C, modified methyl vinylsiloxane rubber is obtained, the flow temperature of modified rubber is 160 DEG C.
Weigh 80 parts of modified methyl vinylsiloxane rubber, the maleic anhydride inoculated polypropylene compatilizer that grafting rate is 1.5%
15 parts, 10 parts of basalt fibre, 30 parts of the nanometer calcium carbonate by silane coupling agent processing, the warp handled by silane coupling agent
Cross 15 parts of alumina fire retardant, ultraviolet absorbing agent 2- (2 '-hydroxyls -3 ', 5 '-two tertiary phenyl) -5- of silane coupling agent processing
1.2 parts of 1.5 parts of chlorination benzotriazole, antioxidant N- phenyl-α-naphthylamine and alkyl phenthazine, vulcanizing agent 2,4- dichloro benzoyl peroxide
5 parts of formyl chloride-1 part, color masterbatch are added to mixing 35min in kneader and obtain rubber complex matrix, and control temperature is no more than 170
DEG C, gained rubber complex matrix flow temperature is 200 DEG C.
Polymer composite is squeezed out by circular mouth mold, needs to be cut into molding material base according to production.Material base will be molded
It is placed in mold and is pressed and molded, briquetting pressure 6MPa, molding temperature is 200 DEG C, dwell time 30min, after demoulding
Natural cooling is up to the anti-bird umbrella cover finished product of macromolecule.
Embodiment 2:
In the present embodiment, methyl vinyl silicone rubber is not modified, directly by methyl vinyl silicone rubber with it is compatible
The components such as agent, basalt fibre, nanometer calcium carbonate are mixed with the anti-bird umbrella cover product of macromolecule, remaining component, production technology are equal
It is same as Example 1.
Embodiment 3:
In the present embodiment, compatilizer and basalt fibre are added not into mixture, and nanometer calcium carbonate and fire retardant are not
By coupling agent treatment, remaining component, production technology are same as Example 2.
Embodiment 4:
In the present embodiment, it is added not into mixture and passes through silane coupler modified nanometer calcium carbonate, remaining component, life
Production. art is same as Example 1.
Embodiment 5:
A. 38 parts of methyl vinyl silicone rubbers, 18 parts of butadiene-styrene rubber, 20 parts of polypropylene and 10 parts of dimethicones are weighed,
2h is stirred to react at 130 DEG C；
B. 10 parts of talan, 2.5 parts of azodiisobutyronitriles are added into step (a) mixture, are stirred at 142 DEG C anti-
Answer 3h；
C. 1 part of Triallyl isocyanurate and 0.6 part of cumyl peroxide are added in step (b) mixture,
After being stirred to react 1h under the conditions of 160 DEG C, modified methyl vinylsiloxane rubber is obtained, the flow temperature of modified rubber is 155-175
℃。
Weigh 100 parts of modified methyl vinylsiloxane rubber, the maleic anhydride inoculated polypropylene compatilizer that grafting rate is 1.2%
12 parts, 15 parts of basalt fibre, 25 parts of the nanometer calcium carbonate by silane coupling agent processing, the warp handled by silane coupling agent
Cross 10 parts of antimony oxide flame retardant, 1 part of the ultraviolet absorbing agent septichen phenyl ester, antioxidant dioxane of silane coupling agent processing
1.2 parts of base zinc dithiocarbamate, 1.2 parts of vulcanizing agent cumyl peroxide, 3 parts of color masterbatch are added in kneader and mix
Refining 50min obtains rubber complex matrix, and control temperature is no more than 170 DEG C, and gained rubber complex matrix flow temperature is 162-201
℃。
Polymer composite is squeezed out by circular mouth mold, needs to be cut into molding material base according to production.Material base will be molded
It is placed in mold and is pressed and molded, briquetting pressure 4MPa, molding temperature is 190 DEG C, dwell time 20min, after demoulding
Natural cooling is up to the anti-bird umbrella cover finished product of macromolecule.
Embodiment 6:
In the present embodiment, methyl vinyl silicone rubber is not modified, directly by methyl vinyl silicone rubber with it is compatible
The components such as agent, basalt fibre, nanometer calcium carbonate are mixed with the anti-bird umbrella cover product of macromolecule, remaining component, production technology are equal
It is same as Example 5.
Embodiment 7:
In the present embodiment, compatilizer and basalt fibre are added not into mixture, and nanometer calcium carbonate and fire retardant are not
By coupling agent treatment, remaining component, production technology are same as Example 6.
Embodiment 8:
In the present embodiment, it is added not into mixture and passes through silane coupler modified nanometer calcium carbonate, remaining component, life
Production. art is same as Example 5.
Experimental example 1:
Above-mentioned 8 groups of embodiment products obtained therefroms are tested for the property, and calculate the cost of each set product, concrete outcome such as table
Shown in 1:
Table 1
It can be seen that by the way that the components such as methyl vinyl silicone rubber and butadiene-styrene rubber, polypropylene, talan will be total to
It is mixed, methyl vinyl silicone rubber matrix is modified, hence it is evident that improve the resistance to ag(e)ing and mechanical strength of rubber matrix；Xiang Gao
The tensile strength that basalt fibre improves basis material is added in molecular matrix；By silicon rubber and nanometer calcium carbonate admixture of powder,
Compared with the silicone rubber matrix of one-component, the cost of raw material is significantly reduced；Using silane coupling agent processing basalt fibre,
Maleic anhydride inoculated polypropylene compatilizer is added in the base, can effectively solve each component for nano-calcium carbonate calcium powder and fire retardant
Between consistency problem, the anti-bird umbrella cover of macromolecule obtained can satisfy requirement completely.
Embodiment 9:
The preparation of modified methyl vinylsiloxane rubber:
A. 55 parts of methyl vinyl silicone rubbers, 15 parts of butadiene-styrene rubber, 30 parts of polypropylene and 8 parts of dimethicones are weighed,
3h is stirred to react at 120 DEG C；
B. 12 parts of talan, 4 parts of azodiisobutyronitriles are added into step (a) mixture, are stirred to react at 130 DEG C
5h；
C. 2 parts of Triallyl isocyanurates and 0.8 part of cumyl peroxide are added in step (b) mixture,
After being stirred to react 1h under the conditions of 160 DEG C, modified methyl vinylsiloxane rubber is obtained, the flow temperature of modified rubber is 150 DEG C.
Weigh 80 parts of modified methyl vinylsiloxane rubber, the maleic anhydride inoculated polypropylene compatilizer that grafting rate is 1.5%
15 parts, 10 parts of basalt fibre, 30 parts of the nanometer calcium carbonate by silane coupling agent processing, the warp handled by silane coupling agent
Cross 15 parts of alumina fire retardant, 1.5 parts of the ultraviolet absorbing agent Methyl Salicylate, antioxidant two of silane coupling agent processing
1.2 parts of alkyl zinc dithiocarbamate, vulcanizing agent 2,1.2 parts of 4- dichlorobenzoperoxide, 2.4 parts of color masterbatch, are added to
It is kneaded 35min in kneader and obtains rubber complex matrix, control temperature is no more than 158 DEG C, gained rubber complex matrix viscosity flow temperature
Degree is 180 DEG C.
Polymer composite is squeezed out by circular mouth mold, needs to be cut into molding material base according to production.Material base will be molded
It is placed in mold and is pressed and molded, briquetting pressure 6MPa, molding temperature is 200 DEG C, dwell time 30min, after demoulding
Natural cooling is up to the anti-bird umbrella cover finished product of macromolecule.
Experimental example 2
Ageing of rubber test, surface checking method are respectively adopted macromolecule bird-proof cover finished product made from embodiment 1-9 and are tried
It tests, each product is repeated 3 times, it records as a result, test method is according to 11206 method A of GB/T, data are as shown in table 2:
Table 2
This experimental example unexpected discovery, when the diameter of basalt fibre is 18 μm, length 3mm, while fire retardant
It is Methyl Salicylate for aluminium oxide, ultraviolet absorbing agent, and antioxidant is zinc dialkyl dithiocarbamate 1.2
Part, vulcanizing agent be 1.2 parts of 2,4- dichlorobenzoperoxide, 2.4 parts of color masterbatch when can be obviously improved product deflect cracking etc.
Grade, improves service life.
Claims (6)
1. a kind of compound anti-bird umbrella cover of macromolecule, which is characterized in that including the component calculated in parts by weight as follows:
2. a kind of preparation method of the compound anti-bird umbrella cover of macromolecule as described in claim 1, which is characterized in that including walking as follows
It is rapid:
(1) preparation of modified methyl vinylsiloxane rubber:
The formula of modified methyl vinylsiloxane rubber includes the component calculated in parts by weight as follows: methyl vinyl silicone rubber 35-
55 parts, 15-18 parts of butadiene-styrene rubber, 10-12 parts of talan, 8-10 parts of dimethicone, 20-30 parts of polypropylene, azo two it is different
2-4 parts of butyronitrile, 1-2 parts of Triallyl isocyanurate, 0.2-1 parts of cumyl peroxide；
Modified methyl vinylsiloxane rubber the preparation method is as follows:
A. methyl vinyl silicone rubber, butadiene-styrene rubber, polypropylene and dimethicone are weighed by the parts by weight of constitutive material,
2-3h is stirred to react at 120-130 DEG C；
B. talan and azodiisobutyronitrile are added by weight in step (a) mixture, are stirred under the conditions of 130-145 DEG C
Mix reaction 3-5h；
C. Triallyl isocyanurate and cumyl peroxide are added by weight in step (b) mixture, in 150-
1-2h is stirred to react under the conditions of 160 DEG C；
(2) above-mentioned modified methyl vinylsiloxane rubber and basalt fibre, compatilizer, nanometer calcium carbonate, fire-retardant are weighed in proportion
Agent, ultraviolet absorbing agent, antioxidant, vulcanizing agent, color masterbatch are added to mixing 30-60min in kneader and obtain rubber composite base
Body, control temperature are no more than 170 DEG C；
(3) rubber complex matrix is squeezed out by circular mouth mold, needs to be cut into molding material base according to production；
(4) molding material base is placed in mold and is pressed and molded, briquetting pressure 4-6MPa, temperature is 190-200 DEG C, pressure maintaining
Time is 8-12min, and natural cooling is after demoulding up to the anti-bird umbrella cover finished product of macromolecule.
3. the preparation method of the compound anti-bird umbrella cover of macromolecule as claimed in claim 2, which is characterized in that the modified methyl second
The flow temperature of alkenyl silicon rubber is 145-175 DEG C.
4. the preparation method of the compound anti-bird umbrella cover of macromolecule as claimed in claim 2, which is characterized in that the preparation method step
Suddenly the flow temperature of gained rubber complex matrix is 162-213 DEG C in (2).
5. the compound anti-bird umbrella cover of macromolecule as described in claim 1, which is characterized in that
The diameter of the basalt fibre is 5-20 μm, length 2-5mm；
The compatilizer is maleic anhydride inoculated polypropylene compatilizer, and minimum grafting rate is 1.2%；
The basalt fibre, nanometer calcium carbonate and fire retardant are pre-processed by silane coupling agent；
The fire retardant is one of aluminium oxide, magnesium hydroxide, antimony oxide；
The ultraviolet absorbing agent is one of salicylic acid esters, benzophenone class, benzotriazole；
The antioxidant is one of zinc dialkyl dithiocarbamate, N- phenyl-α-naphthylamine and alkyl phenthazine.
6. the compound anti-bird umbrella cover of macromolecule as described in claim 1, which is characterized in that
The component of the antioxidant, vulcanizing agent and color masterbatch is respectively 1.2,1.2 and 2.4 parts；
The diameter of the basalt fibre is 18 μm, length 3mm；
The fire retardant is aluminium oxide；
The ultraviolet absorbing agent is salicylic acid esters.
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| CN113912880A (en) * | 2021-08-23 | 2022-01-11 | 四川新达粘胶科技有限公司 | Oxygen-enriched film and preparation method thereof |
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